What was found
ALL THREE HYD LINE CLAMP BLOCKS CORRODED AT BRACKET ATTACH POINT AS SEEN THRU PANEL 552AB OPENING. REMOVED, FABRICATED & REPLACED THREE HYD LINE CLAMP BOCKS INSIDE PANEL 552AB OPENING IAW DWG 113T1101 & SRM 51-40-02. CORRODED L2, PN 65B80254-304, SN N/A, PART NAME CHANNEL, STRINGER & WS LOCATION ON ACFT 285 TO 290. ACFT WAS GNDED.